What we talk today is PR and outside catenary.
今天我们谈的是PR与外链。
Catenary theory is a theory that really shows the gravity property of suspension rope.
悬链线理论是真实反映悬索重力特性的理论。
The overhead catenary system is the main facility for power supply in electrified railway.
接触网是电气化铁路的主要供电设备。
The overhead catenary system is the main facility for power supply in electrified railway.
接触网是电气化铁路的主要供电设备。
应用推荐